I used to try to use it to dust ceiling fan blades, I've tried the pillow case thing, but I find that to be more work than needed. Those bendable dust sticky brissle things seem to work best with the vaccum. Needless to say I have succumb to just leaving the fans on so I don't see the dust and then try to make sure I do them once a season.
Edit: this thing would probably work great... Maybe next year.
Seems like a joke but this was a popular haircut in the late 90s. We used to call it “the ashtray”. Kinda ironic that kids nowadays may not even know what an ashtray is. Man the 90s had some nice stuff but they also stank of cigarettes